I guess 20+ groups are hard to find, I rarely team with someone my level in the 20+ range... and everytime I get a team invite it is for a strike force which I really don't give a darn about lately heh.
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Our SG has a few 20-something who team fairly regularly most evenings (me included). You would be welcome to join us, send a tell to Negatron or Nuclear Baggart 
So what do you suggest I do? I preffer setting up another lvl 20 character than waiting for hours untill I get into a group.. It's kind of a shock to me, because lvl 10-19 groups were super easy to find...
I take it you are sending tells to people asking to team? Try sending tells to people already in a team asking if they have room for 1 more. You have /rad so I'm assuming you have Accelerate Metabolism? Most teams would have you along just for that 
Thats weird. I seem to have no problems finding lv 20 + groups. Can only suggest you join a sg with several in it or form up afew more sg coalitions.
I know my sg has over 17 lv 20's in it. Give me a shout (if you see me online - Max Khaos) and I try get you in a lv 20 team.
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may be a silly question but what zone are you workig coz my SVG has around 8 members over 20 and we are coalitioned with 3 other groups with more 20+ members
pluss im lvl 32 now and never realy hada problem finding a team apart from silly time like 3am
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Is it me, or are lvl20+ groups are extremely hard to find? Maybe it's just bad luck, but I've been looking for a group for about two days now, and the best one I got so far was a Lackey'ed lvl 17 group
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What should I do? Should I raise another character to lvl 20 untill there are more lvl20s around (I'm really not into that "I got to 40 before everyone else!" thing :P)? Or should I just continue fighting green mobs 'till there are more lvl20s around?
Or is anyone interested in "going steady" with me? I'm an Ice/Rad corruptor